E3L-DS50E4 Omron, E3L-DS50E4 Datasheet - Page 7

• Manufacturer Part Number: E3L-DS50E4
• Description: Photoelectric Sensors - Industrial CLASS 1 LASER
• Manufacturer: Omron
• Series: E3Lr

Specifications of E3L-DS50E4

• Sensing Distance: 7.874" ~ 19.685" (200mm ~ 500mm) ADJ
• Sensing Method: Reflective, Diffuse
• Sensing Object: White Paper
• Output Configuration: NPN - Dark-ON/Light-ON - Selectable
• Sensing Light: Infrared
• Mounting Type: Bracket Mount
• Current - Supply: 40mA
• Voltage - Supply: 12 V ~ 24 V
• Package / Case: Module, Pre-Wired
• Features: High Precision Alignment
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

E3L
Operation
I ALARM OUTPUT (-50 models)
The alarm output operates when the control
output is in an unstable OFF or ON state for
more than 100 ms. An unstable state occurs
when the amount of light incident upon the
receiver is within 20% of the amount of light
needed to change the control output state.
The alarm output feature indicates gradual
degradation of stability caused by changes in
sensor position, atmosphere, temperature or
ambient light that will eventually result in an
unstable control output. A change that occurs in
less than 100 ms will not cause the alarm
output to operate.
A 100 ms time delay is built into the alarm
output circuit. This prevents false triggering of
the alarm output as the leading and trailing
edges of the object to be detected are sensed.
When sensing objects moving at low speeds, a
separate ON-delay timer should be used to
prevent false triggering of the alarm output.
I LIGHT INCIDENT INDICATOR
The LIGHT incident indicator (red LED) illuminates when the
light from the emitter is incident on the receiver and exceeds
the operating level (trigger point) of the sensor. This indicator
illuminates whenever the object is absent for through-beam
type and when the object is present for diffuse reflective type.
I STABILITY INDICATOR
The STABILITY indicator (green LED) illuminates when the
control output is in a stable OFF or ON state. A "stable" state
occurs when the receiver element of the sensor receives less
than 80% (OFF state) or more than 120% (ON state) of
incident light needed to operate the sensor.
The control output STABILITY indicator goes off every time the
amount of light incident on the receiver is within 20% of the
amount of light needed to change the control output state.
The unstable control output condition may occur when the
sensor encounters the leading and trailing edges of the object
to be detected. However, the alarm output described later will
not operate if the unstable condition recovers within 100 ms.
The condition can occur when a change in sensor position,
atmosphere (dust contamination), temperature or ambient light
causes the light incident on the receiving element to be near
the operating level of the sensor.
Discontinued Mar. 30, 2009; Use E3Z-L Laser
8
Stability indicator
(green LED)
Light incident indicator
(red LED)
E3L